Observation 101945: Boletus campestris group
When: 2012-07-18
No herbarium specimen

Notes: When I first saw a group of small ones I initially thought “campestris.” But the stipes were quite punctate, which is not something I recall seeing on collections of campestris I have made. (B. campestris grows in my yard.) Then I spotted a few larger ones in a shady area of the same patch. The ones in the first photo have cap diameters around 3 inches. A couple others (same patch) seem too large and robust – stemmed for campestris.

Grassy wood border near a row of spruce on the border. Hardwoods behind the spruce.

Interesting chemical feature… KOH dark red on pores.

Proposed Names

58% (1)
Recognized by sight
Based on chemical features: KOH negative on cap, pale orange on context in stipe.
86% (1)
Eye3 Eyes3
Recognized by sight

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Is B. rubellus considered to be one of…
By: Dave W (Dave W)
2012-07-19 04:27:07 MST (-0700)

the members of the B. campestris group? Or is it better to call it the “Boletus fraterus group?”

Based upon size of fruit bodies, I think these are B. rubellus.

Created: 2012-07-18 20:07:34 MST (-0700)
Last modified: 2012-07-19 04:23:44 MST (-0700)
Viewed: 37 times, last viewed: 2017-06-13 06:05:20 MST (-0700)
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